package com.spring.boot.config.security.handler;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.spring.boot.response.Result;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@Component("myAuthenticFailureHandler")
public class MyAuthenticFailureHandler implements AuthenticationFailureHandler {
    @Override
    public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException {
        Result result = null;
        //        密码错误
        if (exception instanceof BadCredentialsException){
            result =Result.error("wrong password!");
        }else {
            result =Result.error("unkmow err!");
        }

        response.getWriter().write(new ObjectMapper().writeValueAsString(result));
    }
}
